Fix coverity errors 1061543 751298

Util/SimpleLogger.h

@@ -60,6 +60,7 @@ private:
 class SimpleLogger {
 public:
     std::ostringstream& Write(LogLevel l = logINFO) {
+    	try {
 			boost::mutex::scoped_lock lock(logger_mutex);
 			level = l;
 			os << "[";
@@ -78,6 +79,7 @@ public:
 		    		break;
 			}
 			os << "] ";
+		} catch (...) { }
 	   	return os;
    }